Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

What does below pictogram mean?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can it be possible to build a house that has all its four walls facing towards the South?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What building has the most stories?